Serving tray



FIG. 1 is a perspective view showing a top of the serving tray according to one embodiment of my new design;

FIG. 2 is another perspective view showing the bottom thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof. 

CLAIM The ornamental design for serving tray, as shown and described. 